CN113756658A

CN113756658A - Cylinder lock state indicator

Info

Publication number: CN113756658A
Application number: CN202110339417.0A
Authority: CN
Inventors: J·C·克利福德
Original assignee: Domacaba Usa
Current assignee: Domacaba Usa
Priority date: 2020-06-01
Filing date: 2021-03-30
Publication date: 2021-12-07
Anticipated expiration: 2041-03-30
Also published as: TW202200889A; US11814873B2; TWI801827B; US20210372161A1; CN113756658B

Abstract

A lock indicator operable to indicate a locked or unlocked condition of one side of a cylinder lock passing through a door selectively protected by the lock. For example, the present disclosure provides a cylinder lock with an entry function, the indicator being viewable by an occupant of an area protected by the cylinder lock. The lock indicator is magnetically actuated.

Description

Cylinder lock state indicator

Cross Reference to Related Applications

The present application claims priority from U.S. provisional patent application No. 63/033,034 entitled "cylinder lock status indicator (CYLINDRICAL LOCK STATUS INDICATOR)" filed 6/1/2020, the entire disclosure of which is expressly incorporated herein by reference.

Technical Field

The present disclosure relates to door locks, and more particularly to door locks having lock status indicators.

Background

Door locks may take many different forms, including cylinder locks and mortise locks. In some cases, the door may be in a locked state to limit ingress and egress by the lock function. It may be advantageous to signal that the door lock remains in a locked condition to an occupant of the space protected by the door or those outside the space protected by the door, thereby limiting ingress and/or egress. However, cylinder locks present unique challenges for transferring lock states between the door entry and exit sides.

Disclosure of Invention

The present disclosure provides a lock indicator that can be used to signal the locked or unlocked state of a lock on one or both sides of a door that the lock selectively protects. Throughout this document, "inner" will be used to refer to the side of the door and lock actuator that can access an occupant of the area protected by the lock, while "outer" will be used to refer to the side of the door and lock actuator that can access those attempting to enter the secure area.

In an exemplary embodiment of the present disclosure, there is provided a cylinder lock having a first side and a second side, the lock comprising: a latch bolt movable between an engaged position operable to restrict ingress and egress and a disengaged position operable to permit ingress and egress; a first actuator operable to receive a first operator input action to actuate the first actuator for moving the latch bolt from the engaged position to the disengaged position, the first actuator being located on a first side of the cylinder lock; a second actuator operable to receive a second operator input action to actuate the second actuator for moving the latch bolt from the engaged position to the disengaged position, the second actuator being located on a second side of the cylinder lock; a first locking lug actuatable between a locked position and an unlocked position, the locked position of the first locking lug corresponding to the cylinder lock being in a locked condition, the first operator input action being prevented from actuating the first actuator to move the latch bolt from the engaged position to the disengaged position; a magnet holder having at least one permanent magnet, the magnet holder selectively operably coupled to the first locking lug such that, when the magnet holder and the first locking lug are operably coupled, the magnet holder moves with the first locking lug between the locked position and the unlocked position; and a flag portion having a lock signal indicating a lock position of the first lock lug and an unlock signal indicating an unlock position of the first lock lug, the flag portion selectively displaying only one of the lock signal and the unlock signal, the flag portion being magnetically driven by the at least one permanent magnet of the magnet holder between a lock signal position displaying the lock signal and an unlock signal position displaying the unlock signal.

In an example thereof, when the locking lug is in the unlocked position, the locking lug is moved by the first actuator input action, the movement of the locking lug disengaging the locking lug from the magnet holder.

In an example thereof, the cylinder lock further includes: a first hub on a first side of the cylinder lock and a second hub on a second side of the cylinder lock, wherein in a locked position of the first locking lug, the first hub prevents movement of the first locking lug, thereby preventing the first operator input action from actuating the first actuator to move the latch bolt from the engaged position to the disengaged position; and a second locking lug operatively coupled to the first locking lug and operable to transition between a first position associated with the engaged position of the first locking lug and a second position associated with the disengaged position.

In a further example thereof, the at least one permanent magnet of the magnet holder includes a coupled permanent magnet operable to selectively couple with the second locking lug and thereby with the first locking lug and transition with the second locking lug between the first position and the second position.

In further examples thereof, the cylinder lock further includes a collar portion positioned coaxially with the second hub, the collar portion operable to transition between a locked state position and an unlocked state position.

In a further example thereof, the collar portion includes a first extension and a second extension, the first extension and the second extension including a plurality of permanent magnets forming a first magnetic field and a second magnetic field, wherein when the magnet holder is in the first position, the magnet holder interacts with the first magnetic field for driving the collar portion to the locked condition position, and when the magnet holder is in the second position, the magnet holder interacts with the second magnetic field for driving the collar portion to the unlocked condition position.

In a further example thereof, the indicator is operatively coupled to the cuff portion and is operable to move with the cuff portion between a locked state position and an unlocked state position.

In yet another example thereof, the cylinder lock further includes a collar portion positioned coaxially with the second hub, the collar portion operable to transition between a locked state position and an unlocked state position.

In an example thereof, the collar portion comprises a first extension and a second extension, the first extension and the second extension comprising a plurality of permanent magnets forming a first magnetic field and a second magnetic field, wherein when the magnet holder is in the first position, the magnet holder interacts with the first magnetic field for driving the collar portion to the locked condition position, and when the magnet holder is in the second position, the magnet holder interacts with the second magnetic field for driving the collar portion to the unlocked condition position.

In an example thereof, the flag is operatively coupled to the ferrule portion and is operable to move with the ferrule portion between a locked state position corresponding to a locked signal position of the flag and an unlocked state position corresponding to an unlocked signal position of the flag.

In an exemplary embodiment of the present disclosure, a lock indicator assembly for a cylinder lock having a first side and a second side, the lock indicator assembly comprising: a first locking lug located on a first side of the cylinder lock and actuatable between a locked position and an unlocked position, the locked position of the locking lug placing the cylinder lock in a locked condition; a shaft extending from a first side of the cylinder lock to a second side of the cylinder lock and actuatable between a first shaft position associated with a locked position of the locking lug and a second shaft position associated with an unlocked position of the locking lug; a second locking lug on a second side of the cylinder lock and operatively coupled to the first locking lug via the shaft and actuatable between a corresponding locked position associated with the locked position of the first locking lug and a corresponding unlocked position associated with the unlocked position of the first locking lug; a cuff portion on a second side of the cylinder lock, the cuff portion actuatable between a locked state position associated with the locked position of the first locking lug, the first shaft position and the corresponding locked position of the second locking lug, and an unlocked state position associated with the unlocked position of the first locking lug, the second shaft position and the corresponding unlocked position of the second locking lug; and a flag operatively coupled to the cuff portion such that the flag moves with the cuff portion, the flag being operable to display a locked state when the cuff portion is in the locked state position and operable to display an unlocked state when the cuff portion is in the unlocked state position.

In an example thereof, the cylinder lock further includes a magnet holder having at least one permanent magnet, the magnet holder located on a second side of the cylinder lock and operatively and selectively coupled with the second locking lug and operable to transition between a first position associated with a locked position of the first locking lug and a second position associated with an unlocked position of the first locking lug, the magnet holder having at least one permanent magnet operable to drive the cuff portion.

In another example thereof, the lock indicator assembly for a cylinder lock further comprises: a first hub on a first side of the cylinder lock, the first hub having a lock channel, the first lock lug occupying the lock channel when in the locked position, the lock channel preventing movement of the first lock lug required to actuate the cylinder lock; and a second hub on a second side of the cylinder lock, the second locking lug having an interior space, the second locking lug moving within the interior space of the second hub between the corresponding locked position and the corresponding unlocked position.

In yet another example thereof, the lock indicator assembly further includes a magnet holder having at least one magnet holder permanent magnet located on the second side of the cylinder lock and operatively and selectively coupled with the second locking lug and operable to transition between a first magnet holder position associated with the locking position of the first locking lug and a second magnet holder position associated with the unlocking position of the first locking lug, the at least one magnet holder permanent magnet operable to magnetically drive the cuff portion between the locked state position and the unlocked state position.

In further examples thereof, the collar portion includes a first extension and a second extension, the first extension and the second extension including a plurality of collar portion permanent magnets forming a first magnetic field and a second magnetic field, the magnet holder magnetically engaging the first magnetic field of the collar portion in the first magnet holder position to place the collar portion in the locked state position, the magnet holder magnetically engaging the second magnetic field of the collar portion in the second magnet holder position to place the collar portion in the unlocked state position.

In further examples thereof, the first extension of the cuff portion is circumferentially spaced from the second extension of the cuff portion.

In further examples thereof, the ferrule portion and the identification portion are operable to rotate between the locked state position and the unlocked state position.

In a further example thereof, the identification portion includes a lock status indicator and an unlock status indicator.

In further examples thereof, the plurality of collar permanent magnets include a first collar permanent magnet located at a first longitudinal position with respect to the collar portion with the first extension and a second collar permanent magnet located at the first longitudinal position with respect to the collar portion with the second extension, the first and second collar permanent magnets forming the first magnetic field, and wherein the plurality of permanent magnets include a third collar permanent magnet located at a second longitudinal position with respect to the collar portion with the first extension and a fourth collar permanent magnet located at the second longitudinal position with respect to the collar portion with the second extension, the third and fourth collar permanent magnets forming the second magnetic field.

In a further example thereof, the first and second hoop permanent magnets are oriented such that the north poles substantially face each other, and wherein the third and fourth hoop permanent magnets are oriented such that the south poles substantially face each other.

In a further example thereof, the at least one magnet holder permanent magnet comprises at least two magnet holder permanent magnets operable to selectively magnetically interact with the first and second magnetic fields formed by the plurality of collar portion permanent magnets, the at least two magnet holder permanent magnets each having opposing poles oriented substantially in the same direction.

In an exemplary embodiment of the present disclosure, an access device operable to selectively block and allow access through a barrier, comprises: an actuator operable to receive an operator input action to rotate the actuator to allow access through the barrier, the actuator extending from a first side of the barrier; a lock actuatable between a locked position and an unlocked position, the locked position of the lock placing the lock in a locked condition preventing the operator input action from rotating the actuator while allowing access through the barrier, the lock comprising: a first hub having a locking channel; a first locking lug occupying a locking channel of the first hub in a locked position of the lock and thereby preventing the operator input action from rotating the actuator to allow access through the barrier, the first locking lug rotating with the actuator in an unlocked position of the lock by the operator input action; and an indicator having a lock signal indicating a locked position of the lock and an unlock signal indicating an unlocked position of the lock, the indicator selectively displaying only one of the lock signal and the unlock signal, the indicator having a lock signal display position displaying the lock signal and an unlock signal display position displaying the unlock signal; the first locking lug is selectively magnetically coupled to the indicator such that transitioning of the lock from the unlocked position to the locked position places the indicator in the locked signal display position and transitioning of the lock from the locked position to the unlocked position places the indicator in the unlocked signal display position, the first locking lug being disengaged from the indicator in the unlocked position of the lock, wherein the indicator maintains the unlocked signal display position throughout the operator input action rotating the actuator and the lug.

In an example thereof, the access device further comprises: a magnet holder selectively magnetically coupling the first locking lug to the indicator, the magnet holder operable to magnetically actuate the indicator between the lock signal display position and the unlock signal display position.

In an example thereof, the indicator includes an identification portion, the access device further includes: a cuff portion coupling the magnet holder and the identification portion.

In an example thereof, the lock further comprises: a second hub, the first hub passing through a first side of the barrier, the second hub passing through a second side of the barrier; a shaft extending between the first hub and the second hub; and a second locking lug, the shaft coupling the first and second locking lugs, the second hub having an interior space, the second locking lug moving within the interior space of the second hub upon movement of the first locking lug, the shaft and second locking lug selectively magnetically coupling the first locking lug to the indicator.

In an exemplary embodiment, a lock indicator mechanism for a door lock includes: a first lug having an engagement portion and being transitionable between a locked position in which the engagement portion restricts movement of the first lug and an unlocked position; a second lug transitionable between a corresponding locked position and a corresponding unlocked position; a shaft extending between the first lug and the second lug such that linear movement of one of the first or second lock inputs causes linear movement of both the first and second lock inputs; a collar rotationally positioned with the second lock input, the collar including a plurality of collar magnets defining a first magnetic field and a second magnetic field; a magnet holder comprising at least one magnet holder magnet, the magnet holder operably coupled to the second lug such that when the second lug is in the corresponding locked position, the at least one magnet holder magnet interacts with the first magnetic field to rotate the cuff portion to a first cuff portion position, and such that when the second lug is in the corresponding unlocked position, the at least one magnet holder magnet interacts with the second magnetic field to rotate the cuff portion to a second cuff portion position; and a lock indicator operatively coupled with the cuff portion such that the lock indicator rotates with the cuff portion and is operable to display a locked state and an unlocked state.

In an example thereof, the magnet holder includes a first permanent magnet operable to removably couple to the second lug and a second magnet operable to interact with the first and second magnetic fields.

In an example thereof, the lock indicator mechanism further includes a hub forming a magnet holder channel, the magnet holder channel extending longitudinally, and the magnet holder operable to transition longitudinally within the magnet holder channel.

In an example thereof, the hub forms a cuff portion channel that extends in a circumferential direction, and a portion of the cuff portion is operable to transition circumferentially within the cuff portion channel upon rotation of the cuff portion.

Drawings

The above-mentioned and other features and advantages of this disclosure, and the manner of attaining them, will become more apparent and the invention will be better understood by reference to the following description of exemplary embodiments taken in conjunction with the accompanying drawings, wherein:

FIG. 1 is a perspective view of a door lock mounted on a door, the door lock including a lock indicator system according to one embodiment;

FIG. 2 is an exploded view of a lock assembly and lock indicator assembly on each side of a door according to one embodiment;

FIG. 3 is a perspective view of an interior lock assembly positioned with an exterior lock assembly and an identification for displaying a locked state and an unlocked state in accordance with one embodiment;

FIG. 4 is a perspective view of a locking lug coupled to a shaft for transmitting a locked condition, wherein one lug is magnetically coupled to a magnet holder for driving a collar portion of a lock indicator assembly, in accordance with one embodiment;

FIG. 5 is a perspective view of the locking lug and shaft with one of the locking lugs coupled to a magnet holder for driving a collar portion including an extension that forms a magnetic field that interacts with the magnet holder for driving a lock indicator assembly in accordance with the embodiment shown in FIG. 4;

FIG. 6 is an exploded view of the embodiment shown in FIGS. 4 and 5, showing the poles of the permanent magnet used to drive the lock indicator assembly;

FIG. 7A is an exploded view of a hub and locking lugs, the hub including a locking channel and an unlocking channel, the engagement portions of the locking lugs being locatable within the locking and unlocking channels to limit ingress and/or egress, according to one embodiment;

FIG. 7B is a cross-sectional view of a hub including a magnet holder passage, a cuff passage, and a magnet holder passage according to one embodiment;

FIG. 8A is a partial cross-sectional view of the inner and outer hubs with the inner and outer locking lugs located within the respective hubs and operatively coupled via the shaft, the inner and outer locking lugs operatively coupled to a magnetically actuated lock indicator assembly with the outer door lock in an unlocked condition, the lock indicator assembly positioned to show an unlocked state associated with the locked condition;

FIG. 8B is a partial cross-sectional view of the embodiment of FIG. 8A with the exterior door lock in a locked condition and the lock indicator assembly positioned to show a locked state associated with the locked condition, in accordance with one embodiment;

FIG. 9A is a cross-sectional side view of an interior lock assembly and an exterior lock assembly coupled to a lock indicator assembly, wherein the exterior lock assembly is positioned in an unlocked condition and the lock indicator assembly is positioned to show an unlocked state, according to one embodiment;

FIG. 9B is a cross-sectional side view of the embodiment of FIG. 9A with the exterior lock assembly positioned in a locked condition and the lock indicator assembly positioned to show a locked state, in accordance with one embodiment; and

FIG. 10 is a cross-sectional view of components of a lock indicator assembly with an interior lock assembly positioned according to one embodiment.

Corresponding reference characters indicate corresponding parts throughout the several views. The exemplifications set out herein illustrate exemplary embodiments of the invention, and such exemplifications are not to be construed as limiting the scope of the invention in any manner.

Detailed Description

For the purposes of promoting an understanding of the principles of the disclosure, reference will now be made to the embodiments illustrated in the drawings and described below. The embodiments disclosed herein are not intended to be exhaustive or to limit the disclosure to the precise forms disclosed in the following detailed description. Rather, the embodiments are chosen and described so that others skilled in the art may utilize their teachings. Accordingly, the scope of the disclosure is not intended to be limited. Corresponding reference characters indicate corresponding parts throughout the several views.

The terms "coupled," "coupler," and variations thereof may be used to include both configurations: an arrangement in which two or more components are in direct physical contact; and configurations in which two or more components are not in direct contact with each other (e.g., "coupled" via at least a third component), but yet still cooperate or interact with each other.

In some examples of the disclosure and claims, numerical terms such as first, second, third, and fourth may be used with reference to various components or features. Such use is not intended to indicate an order of parts or features. Rather, numerical terms are used to aid the reader in identifying the components or features that are referenced, and should not be construed narrowly as providing a particular order of the components or features.

Fig. 1 illustrates a barrier illustrated as a door 10 having a door lock 12. As shown, the door lock 12 is illustrated as a cylinder lock. Cylinder locks are well known in the art and therefore, only certain details of an exemplary lock are described in detail in the following description, which is instead directed to an indicator device and associated method of use.

As shown in fig. 1, the door lock 12 includes an egress actuator, illustrated as an egress handle 14. The door lock 12 also includes an entry actuator, illustrated as an entry handle 16. The door lock 12 is operatively coupled to the door 10. The door 10 is arranged, in use, to selectively permit and prohibit access to areas selectively covered by the door 10. In one example, the door 10 may be hinged to a door frame and may be selectively secured to the door frame by a latch bolt 18, as is well known in the art. In the unlocked state of the door lock 12, both the egress handle 14 and the ingress handle 16 may be actuated by an operator input action, moving the latch bolt 18 from the extended position shown in fig. 1 to a retracted position allowing ingress and egress through the door 10. When one of the egress handle 14 and the ingress handle 16 is actuated to move the latch bolt 18 to the retracted position, the door 10 may move relative to its door frame, allowing ingress and egress therethrough. The transition between the rotational movement of the egress handle 14 and the ingress handle 16 to the retraction of the latch bolt 18 is well known in the art and therefore will not be described again for the sake of brevity. In its simplest form, such a mechanism may take the form of a cam that is rotated by the entry handle 16 and the exit handle 14 to reciprocate the latch bolt 38 between its extended and retracted positions.

Referring to fig. 2, the door lock 12 further includes a lock indicator assembly 20, an interior lock assembly 30, and an exterior lock assembly 40. The lock indicator assembly 20 is operable to display a lock state (e.g., a locked state or an unlocked state) of the door lock 12 to a user. More specifically, the lock indicator assembly 20 displays to a user the lock status of either the interior lock assembly 30 or the exterior lock assembly 40. The lock indicator assembly 20 may be placed on either side of the door 10, and in some embodiments on both sides of the door 10. In some embodiments, when the lock indicator assembly 20 is located on the opposite side of the door 10 relative to the interior lock assembly 30 or the exterior lock assembly 40, the lock indicator assembly 20 displays the lock state of one of the interior lock assembly 30, the exterior lock assembly 40. In other words, the lock status of the respective interior or

exterior lock assembly

30, 40 is indicated by the lock indicator assembly 20 being transmitted through the door 10 from inside to outside or from outside to inside. Also, the lock state of the interior lock assembly 30 or the exterior lock assembly 40 is mechanically transmitted through the door 10.

The lock indicator assembly 20 transitions between displaying a locked state and an unlocked state, the locked state and the unlocked state corresponding to the locked state or the unlocked state of the door lock 12 established by an internal lock input or an external lock input of the door lock 12 (e.g., the internal lock input or the external lock input may include a key-in lock input, a thumb-turn input, and a button input). As can be seen in fig. 2, the lock indicator assembly 20 may include an identification portion 22, a ferrule portion 24, a magnet holder 26, and a box cover 29a with a box cover gasket 29b, as will be discussed below. The lock indicator assembly 20 is magnetically actuated such that when the lock state of the door lock 12 is transitioned between the locked state and the unlocked state, the lock indicator assembly 20 is actuated via the magnetic field to transition between the first position and the second position. Since the operation of the lock assembly from the lock input to the locking lug (e.g., locking lug 48 described further below) is well known to those of ordinary skill in the art, it will not be described herein for the sake of brevity. Additional descriptions of various cylinder locks, including entry, privacy, and intrusion locks, may be found in united states provisional patent application 63/005,886 filed on 6.4.2020, and in united states utility application entitled "cylinder lock status indicator (CYLINDRICAL LOCK STATUS INDICATOR)" filed on even date herewith, assigned attorney docket number BAS-2020501-02, the entire contents of which are incorporated herein by reference in their entirety. In its simplest form, a log input may simply translate a longitudinal user action into a longitudinal displacement of the locking lug. Various cam mechanisms may be used to translate rotational user input into longitudinal displacement of the locking lug.

An overview of the components of the interior and

exterior lock assemblies

30, 40 is provided to facilitate an understanding of how the lock indicator assembly 20 operates with respect to the interior and/or

exterior lock assemblies

30, 40. The lock indicator assembly 20 will be described later. Finally, a description of the interaction between the lock indicator assembly 20 and the interior and

exterior lock assemblies

30, 40 will be provided. While the following discussion may sometimes indicate that the interior lock assembly 30 has certain components or features and the exterior lock assembly 40 has certain components or features, in some embodiments, these components or features may be interchanged. For example, those components and features associated with the exterior lock assembly 40 as discussed can be implemented on the exterior lock assembly 40, and those components or features associated with the exterior lock assembly 40 as discussed can be implemented on the interior lock assembly 30. In other words, the door lock 12 may be implemented to allow egress while preventing ingress, or alternatively to allow ingress while preventing egress. For example, the disclosure below discusses a classroom or "intruder" function door lock, however the components may be interchanged to provide the opposite function of the door lock (e.g., for use in an interrogation chamber).

Referring now to fig. 2-4, the door lock 12 includes an interior lock assembly 30 and an exterior lock assembly 40. The interior lock assembly 30 communicates with the interior side of the door 10 and the egress handle 14, and the exterior lock assembly 40 communicates with the exterior side of the door 10 and the ingress handle 16. The interior and

exterior lock assemblies

30, 40 transition between the locked and unlocked positions. In some embodiments, the interior and

exterior lock assemblies

30, 40 transition between a locked condition and an unlocked condition (e.g., via a key used to actuate the exterior lock assembly 40 and/or the interior lock assembly 30). The interior and

exterior lock assemblies

30, 40 are operatively coupled or interfit such that the interior and

exterior lock assemblies

30, 40 transition together between states. For example, when the exterior lock assembly 40 transitions from the locked state (e.g., preventing the operator input motion from actuating the latch bolt 18) to the unlocked state (e.g., the operator input motion from actuating the latch bolt 18), the interior lock assembly 30 transitions from a first state corresponding to the locked state of the exterior lock to a second state corresponding to the unlocked state of the exterior lock. Also, this allows the exterior lock assembly 40 to transition between the locked state and the unlocked state from the outside of the door 10 or the inside of the door 10.

Referring to fig. 2, the interior lock assembly 30 includes an interior release cam 32, an interior cam sleeve 34, an interior lug carrier 36, an interior lug 38, and an interior hub 60. The internal release cam 32 is operable to rotate in response to an operator input action to respond to an output to actuate the latch bolt 18. The internal lug carrier 36 and internal lug 38 are restricted from rotating relative to the internal release cam 32. The internal lug carrier 36 is located within the internal cam sleeve 34. The internal lugs 38 are coupled to the internal lug carrier 36 such that, as the internal lug carrier 36 transitions between various positions, the internal lugs 38 transition with the internal lug carrier 36. Internal lugs 38 are positioned within internal hub 60 and move relative to internal hub 60 (e.g., linearly translate within internal hub 60 and rotate within internal hub 60). The interior lock assembly 30 also includes a lock indicator engagement portion 39. The lock indicator engagement portion 39 extends from the internal lug 38 or is included in the internal lug 38. In some embodiments, the lock indicator engagement 39 is formed of a ferromagnetic material such that the magnet is releasably coupled to the lock indicator engagement 39 of the internal lug 38. In some embodiments, the lock indicator engagement 39 includes a lug magnet 37 (e.g., a permanent magnet) coupled to the internal lug 38, embedded in the internal lug 38, or otherwise extending from the internal lug 38. The lock indicator engagement portion 39 is operable to engage components of the lock indicator assembly 20, as will be discussed below.

Still referring to fig. 2, the exterior lock assembly 40 includes an exterior release cam 42, an exterior cam sleeve 44, an exterior lug carrier 46, exterior lugs 48, and an exterior hub 80. The external release cam 42 is operable to rotate in response to an operator input action to respond to an output to actuate the latch bolt 18. The outer lug carrier 46 and outer lug 48 are restricted from rotating relative to the outer release cam 42. External lug carrier 46 is located within external lug sleeve 44. The external lugs 48 are coupled to the external lug carrier 46 such that, as the external cam carrier 46 transitions between various positions, the external lugs 48 transition with the external lug carrier 46. The external lugs 48 are positioned within the external hub 80 and move relative to the external hub 80 (e.g., linearly translate within the external hub 80 and rotate within the external hub 80). External lugs 48 are positioned with external hub 80 such that features of external lugs 48 interact with features of external hub 80 to provide a locked condition and an unlocked condition of door lock 12. For example, external lugs 48 include engagement portions 49 that interact with features of external hub 80 that selectively allow or restrict rotation of external lugs 48 relative to external hub 80.

Referring to fig. 3, the door lock 12 also includes a shaft 50 extending between the interior lock assembly 30 and the exterior lock assembly 40. The shaft 50 operatively couples the interior lock assembly 30 with the exterior lock assembly 40 such that when the exterior lock assembly 40 is actuated (e.g., transitioned between a locked condition and an unlocked condition via a key), the interior lock assembly 30 is also actuated. More specifically, and as can be seen in more detail in fig. 2, 4 and 5, the shaft 50 extends between the inner and

outer lug carriers

36, 46. A first end 52 of the shaft 50 is coupled to the inner lug carrier 36 and a second end 54 of the shaft 50 is coupled to the outer lug carrier 46. In some embodiments, the shaft 50 is fixedly coupled to the internal and

external lug carriers

36, 46 such that the shaft 50 transfers linear and rotational motion between the internal and external lug carriers 36, 46 (e.g., the keyed relationship between the shaft 50 and each of the internal and

external lug carriers

36, 46 causes the internal lug carrier 36, external lug carrier 46, and shaft 50 to rotate together). Optionally, in other embodiments, the shaft 50 is rotationally coupled with the internal lug carrier 36 (e.g., via a groove coupling between the shaft 50 and the internal lug carrier 36). The outer lug carrier 46 is rotationally fixed relative to the outer release cam 42. The pin 47 couples the shaft 50 and the outer cam carrier 46. The outer cam sleeve 44 receives a portion of the outer lug carrier 46 and includes a channel 45 for receiving a portion of the pin 47. The channel 45 provides a cam feature of the exterior lock assembly 40. For example, the channel 45 extends partially around the perimeter of the outer cam sleeve 44 along a portion of the length of the outer cam sleeve 44. Because the pin 47 is fixedly engaged with the outer cam carrier 46 and movably located in the channel 45 of the outer cam sleeve 44, and because the outer lug carrier 46 is rotationally fixed relative to the outer release cam 42, rotation of the outer cam sleeve 44 about its longitudinal axis translates the pin 47 within the channel 45. The rotational movement of the outer cam sleeve 44 is translated into linear movement of the pin 47 and outer cam carrier 46. Because the inner cam carrier 36 and the outer cam carrier 46 are maintained at a fixed linear distance from each other, the inner lug carrier 36 translates linearly the same distance in the same direction as the outer cam carrier 46 moves in a linear direction.

As the external lug carrier 46, and thus the external lug 48, moves between the first and second linear positions, the lock state of the external lock assembly 40 changes. The external lug carrier 46 and external lugs 48 move linearly relative to the external hub 80. The hub 80 selectively limits or allows rotational movement of the external lugs 48 relative to the external hub 80, which corresponds to a locked condition and an unlocked condition, respectively. When the external lug carrier 46 is positioned within the external cam sleeve 44 toward the interior lock assembly 30, the exterior lock assembly 40 is in an unlocked state and allows rotational movement of the external lugs 48 and the external release cam 42 relative to the external hub 80. When the external lug carrier 46 is positioned within the external cam sleeve 44 away from the internal lock assembly 30, the external lock assembly 40 is in a locked state and rotational movement of the external lugs 48, and thus the external release cam 42, relative to the external hub 80 is restricted. The locked condition is achieved by the external lug carrier 46, external lug 48 and external release cam 42 being restricted from rotational movement, which prevents an operator input action (which attempts to rotate the associated release cam) from actuating the latch bolt 18. For example, the exterior lock assembly 40 includes exterior lugs 48, the exterior lugs 48 engaging adjacent structure of the exterior hub 80 to limit rotational movement of the above-described components. In one embodiment, the lock channel engagement portion 49 selectively engages the outer hub 80 when the lock channel engagement portion 49 of the outer lug 48 is located within the lock channel 82 of the outer hub 80 (fig. 7A).

Referring to fig. 3, the inner hub 60 and the outer hub 80 are positioned opposite each other and secured to the door 10 (fig. 1) and extend from the inside and outside of the door 10, respectively. The inner hub 60 and the outer hub 80 are rotationally and translationally fixed relative to the door 10 and the longitudinal axis 75 when in use.

Referring to fig. 7A, the outer hub 80 includes a locking channel 82 and an unlocking channel 84. The locking channel 82 is formed by walls defining a longitudinal slot. An unlocking channel 84 is formed in the outer hub 80 and defines an arcuate slot. When the lock channel engagement portion 49 of the external lug 48 is located in the lock channel 82, rotational movement of the external lug 48 relative to the external cam sleeve 44 is limited, which prevents operator input action from actuating the egress handle 14 (fig. 1) to move the latch bolt 18 (fig. 1) from the engaged position to the disengaged position. When the locking channel engagement portion 49 of the external lug 48 is positioned in the unlocking channel 84 (e.g., by rotating the external cam sleeve 44 to transition the locking engagement portion 49 from the locking channel 82 to the unlocking channel 84, thereby translating the external lug 48 along the longitudinal axis 75), the external lug 48 is free to rotate within the arcuate slot of the unlocking channel 84, and thus the external release cam 42 is also free to rotate, thereby allowing user input to actuate the entry handle 16 and the latch bolt 18.

Turning to the discussion of the inner hub 60, in some embodiments, the inner hub 60 is shaped such that the lock indicator engagement portion 39 of the inner lug 38 is able to move freely within the interior space 67 (fig. 8B) of the inner hub 60, regardless of whether the exterior lock assembly 40 is in a locked or unlocked condition. In other embodiments, the inner hub 60 optionally includes features similar to the outer hub 80. For example, the inner hub 60 may include locking and unlocking passages defined in the inner wall 63 of the hub body. The locking channel may be formed by walls defining a longitudinal slot. The unlocking channel may be formed in the inner hub 60 and may define an arcuate slot.

Referring to fig. 7B, the inner hub 60 also includes features that cooperate with the lock indicator assembly 20. For example, the inner hub 60 includes a magnet holder passage 66 defined through the inner wall 63 of the inner hub 60. The magnet holder channel 66 is formed to extend longitudinally along a portion of the body of the inner hub 60. The magnet holder channel 66 receives the magnet holder 26 of the lock indicator assembly 20. The magnet holder channel 66 matches the outer profile of the magnet holder 26 to prevent rotational movement or any movement other than substantially parallel to the movement of the shaft 50 along the longitudinal axis 75 so that the magnet holder 26 transitions linearly from the first position to the second position within the magnet holder channel 66. In some embodiments, the magnet holder channel 66 includes a portion that does not extend completely through the inner wall 63 of the inner hub 60. For example, the magnet holder channel 66 includes a transverse portion defined in the body of the inner hub 60 (e.g., defined between the inner wall 63 and the outer wall 65). Fig. 10 illustrates the magnet holder 26 positioned within the magnet holder channel 66 (not labeled because the magnet holder 26 fills the magnet holder channel 66 in fig. 10), wherein a lateral portion of the magnet holder channel 66 intersects and is coextensive with the cuff channel 70, as described below. Optionally, the magnet holder passage 66 and the collar passage 70 may be separable so that they do not intersect and are not coextensive.

The inner hub 60 also includes a cuff passage 70 at one longitudinal end of the inner hub 60. The cuff passage 70 will receive a portion of the cuff as described below. The cuff passage 70 is positioned coaxially with the shaft 50 and is formed to allow the cuff portion 24 to travel a predetermined distance within the cuff passage 70. The cuff passage 70 includes an arcuate slot defined within the body of the inner hub 60. In some embodiments, the hoop gate passage 70 includes a first hoop gate passage 70a and a second hoop gate passage 70b that are positioned such that the first hoop gate passage 70a and the second hoop gate passage 70b are located on each side of the magnet holder passage 66. For example, a first cuff passage 70a is adjacent a first side of the magnet holder passage 66 and a second cuff passage 70b is adjacent a second side of the magnet holder passage 66.

Turning now to a discussion of the lock indicator assembly 20, the lock indicator assembly 20 is mechanically actuated by components of the interior lock assembly 30 and/or the exterior lock assembly 40. More specifically, the lock indicator assembly 20 is driven by mechanical input received from components of the interior and

exterior lock assemblies

30, 40 to achieve the locked and unlocked conditions of the door lock 12.

As shown in fig. 2 and 4-6, the lock indicator assembly 20 includes a logo portion 22, a ferrule portion 24, a magnet holder 26, and a box cover 29 a. The magnet holder 26 comprises a receiving portion 27 for receiving at least one permanent magnet 28. The coupling permanent magnet 28a forms a coupling magnetic field operable to interact with the lock indicator engagement portion 39 of the internal lug 38 of the internal lock assembly 30, and the at least one lock indicator magnet 28b forms a lock indicator magnetic field operable to interact with a magnetic field associated with the collar portion 24. The permanent magnet 28 may be integrated directly into the magnet holder 26. In one example, the magnet holder 26 includes a first receiving portion 27a for receiving the coupling permanent magnet 28a, a second receiving portion 27b for receiving the first lock indicator magnet 28b, and a third receiving portion 27c for receiving the second lock indicator magnet 28 c. The coupling permanent magnet 28a is positioned such that it initially interacts with the lock indicator engagement portion 39 of the interior lock assembly 30. The first lock indicator magnet 28b and the second lock indicator magnet 28c are arranged such that they initially interact with the cuff portion 24. The longitudinal axes of the first and second

lock indicator magnets

28b, 28c are arranged to substantially follow an arcuate path that matches the arcuate path defined by the hoop channel 70 of the inner hub 60 such that the magnetic field defined by the first and second

lock indicator magnets

28b, 28c is at least partially disposed within the arcuate path. In some embodiments, the longitudinal axis of the coupling permanent magnet 28a is positioned at an angle substantially or slightly less than 90 degrees relative to the longitudinal axes of the first and second

lock indicator magnets

28b, 28c such that the coupling permanent magnet 28a is radially oriented relative to the arcuate path.

As previously described with respect to fig. 6 and as shown in fig. 8A-9B and 10, the magnet holder 26 is at least partially located within the magnet holder channel 66 of the inner hub 60 and transitions between a first position and a second position within the magnet holder channel 66. The magnet holder channel 66 and the cuff channel 70 (shown in fig. 7B and 10) are partially coextensive so that the magnet holder 26 is partially within the cuff channel 70 (e.g., the second and third magnet receptacles 27B, 27c and their corresponding permanent magnets 28B, 28 c). When the cuff 24 is positioned with the inner hub 60 such that the first and

second extensions

102, 104 are located in the cuff passage 70 of the inner hub 60, the first and second magnetic fields (discussed below) are at least partially located within the cuff passage 70.

Referring to fig. 6, the cuff portion 24 includes a cap 100 coaxially positioned relative to the inner hub 60. In some embodiments, the cap 100 is shaped as an arch (e.g., partially or fully circular or annular), but may include other shapes. The cuff portion 24 includes a first extension 102 and a second extension 104 extending from the arcuate cap 100. The first extension 102 and the second extension 104 are configured to be received in the cuff passage 70 (fig. 7B) of the inner hub 60. The cuff passage 70 of the inner hub 60 includes an arc length that is longer than an arc length defined between the first extension 102 and the second extension 104 along substantially the same radius of curvature, allowing the cuff 24 to rotate about the longitudinal axis 75 and transition between various positions relative to the inner hub 60. The spring located between the cap 29a and the cap 100 of the cuff portion 24 serves to maintain the position of the cuff portion 24 relative to the hub 60 along the longitudinal axis 75 of the hub.

The permanent magnets 106, 108 of the first extension 102 and the second extension 104 form a first magnetic field disposed at a first longitudinal location and a second magnetic field disposed at a second longitudinal location. The first magnetic field is generated significantly by the permanent magnet located at the first longitudinal position with the first extension 102 and the second extension 104. For example, the first permanent magnet 106a and the second permanent magnet 106b generate a first magnetic field at a first longitudinal position. The first permanent magnet 106a and the second permanent magnet 106b each have a south pole and a north pole, with like poles facing each other along an arcuate path. The second magnetic field is generated by a permanent magnet located at a second longitudinal position with the first extension 102 and the second extension 104. For example, the third permanent magnet 108a and the fourth permanent magnet 108b generate a second magnetic field at a second longitudinal position. The third permanent magnet 108a and the fourth permanent magnet 108b each have a south pole and a north pole, wherein like poles face each other along an arcuate path such that the poles facing each other are different from the poles of the first and second permanent magnets 106 of the first magnetic field. The first and second magnetic fields are described in more detail below with reference to the magnet holder 26 and the inner hub 60.

Referring to fig. 6, 8A, and 8B, in one example, the first and second permanent magnets 106a, 106B of the cuff 24 generate an effective first magnetic field when the south poles of the first and second permanent magnets 106a, 106B of the cuff 24 substantially face each other in the cuff passage 70. The third and fourth

permanent magnets

108a, 108b of the hoop section 24 generate an effective second magnetic field when the north poles of the third and fourth permanent magnets 108 of the hoop section 24 substantially face each other in the hoop section passageway 70. The effective first and second magnetic fields are longitudinally spaced from each other and form opposing magnetic fields. The magnet holder 26 comprises a second lock indicator magnet 28b and a third lock indicator magnet 28c, which form a lock indicator magnetic field, wherein the second lock indicator magnet 28b and the third lock indicator magnet 28c are oriented such that north and south poles are substantially facing the same direction, essentially forming a lock indicator magnetic field having a single north pole and a single south pole substantially tangent to the arcuate path. When the magnet holder 26 is in the first position (shown in fig. 8A), the second and third

lock indicator magnets

28b, 28c interact with the effective first magnetic fields generated by the first and second

permanent magnets

106a, 106 b. Because the north pole of the first permanent magnet 106 is facing inward, the single south pole of the lock indicator magnetic field of the magnet holder 26 is attracted to the north pole of one of the first permanent magnet 106a, the second permanent magnet 106b at one end of the lock indicator magnetic field and repelled by the north pole of the other of the first permanent magnet 106a, the second permanent magnet 106b at the other end of the lock indicator magnetic field. Because the collar portion 24 rotates relative to the inner hub 60, the attractive and repulsive forces of the magnet holder magnetic field and the first magnetic field of the collar portion 24 cause the collar portion 24 to rotate in the first direction. When the magnet holder 26 is transitioned from the first position to the second position (shown in fig. 8B), the collar portion 24 rotates in a second, opposite direction due to the interaction of the magnet holder magnetic field of the magnet holder 26 with the effective second magnetic field generated by the south poles of the inwardly facing third and fourth permanent magnets 108a, 108B. A similar effect can be achieved by changing the orientation of the poles in a number of ways. Generally, the magnet holder 26 interacts with the collar portion 24 such that the collar portion 24 rotates in a first direction within the channel when the magnet holder 26 is in the first longitudinal position and the collar portion 24 rotates in a second direction within the channel when the magnet holder 26 is in the second longitudinal position. A spring clip or radial stop associated with the hub 60 may be used to maintain the axial position of the cuff portion 24 relative to the hub 60, i.e., may limit axial displacement of the cuff portion 24 relative to the hub 60 along the hub longitudinal axis 75. The magnetic attraction between the ferrule portion 24 and the magnet holder 26 may also maintain the axial position of the ferrule portion 24 relative to the hub 60.

The inner hub 60, the collar portion 24, and the magnet holder 26 may all be designed such that the second lock indicator magnet 28b, the third lock indicator magnet 28c never contact the first, second, third, or fourth

permanent magnets

106a, 106b, 108a, 108b of the collar portion 24. For example, the inner hub 60 includes a stop channel 64 (fig. 7B) that receives a retaining portion 116 extending from the lock indicator assembly 20 (e.g., extending from the logo portion 22, or alternatively extending from the cuff portion 24, as shown in fig. 8A and 8B). The stop channel 64 is sized to transition the retaining portion 116 between a first position and a second position that indicate a locked state and an unlocked state (see fig. 10) and to limit rotation of the logo portion 22 and the cuff portion 24 (e.g., rotation of the logo portion 22 and the cuff portion 24 relative to each other is limited) beyond the first and second positions. The first and second positions defined by the stop channel 64 and the retaining portion 116 allow the collar portion 24 to be positioned such that the first extension 102, the second extension 104, and more specifically the first, second, third and fourth

permanent magnets

106a, 106b, 108a, 108b, are restricted from contacting the second magnet 28b and the third magnet 28c of the magnet holder. For example, when the ferrule portion 24 is in the first position or the second position associated with the locked state and the unlocked state, the first, second, third, and fourth

permanent magnets

106a, 106b, 108a, 108b are spaced apart from the second magnet 28b and the third magnet 28 c. The arcuate spacing of the magnets and magnet holders 26, including the collar portion 24, allows the magnet holders 26 to more easily transition between the first and second positions without disengaging from the lock indicator engagement 39 of the internal lugs 38 of the internal lock assembly 30. When the egress handle 14 is actuated, the internal lug 38 is thereby rotated, so that the magnet holder 26 and the lock indicator engagement portion 39 of the internal lug 38 of the internal lock assembly 30 are magnetically separated from each other. When the egress handle 14 returns to the neutral position, the magnet holder 26 and the lock indicator engagement portion 39 of the internal lug 38 of the internal lock assembly 30 can be magnetically recoupled when the internal lug 38 returns to the neutral position (e.g., via a biasing force back to the neutral position). As the magnet holder 26 is magnetically coupled to or decoupled from the internal ledge 38, the lock indicator assembly 30 remains in the illustrated locked state because the magnet holder 26 remains in its unlocked position.

The lock indicator assembly 20 includes a logo portion 22 and a box cover 29 a. The flag 22 may be operatively coupled to the cuff 24 such that when the cuff 24 is rotated, the flag 22 is also rotated. For example, the label 22 includes a retaining portion 116 (FIG. 3) extending therefrom. The cuff portion 24 includes a receiving portion 101 (e.g., an aperture) for receiving the retaining portion 116. When the receiving portion 101 and the holding portion 116 are engaged, the cuff portion 24 and the identification portion 22 are rotationally coupled, so that when one rotates, the other also rotates. The cover 29a includes a window 110 through which window 110 the lock indicator 112 and unlock indicator 114 (fig. 2) of the label 22 are alternately visible. The window 110 of the cover 29a is sized to display only one of the lock indicator 112 and the unlock indicator 114 of the identification portion 22 at a given time. For example, the lock indicator 112 is visible when the collar portion 24 is in the first rest position, and the unlock indicator 114 is visible when the collar portion 24 is in the second rest position. The first rest position is related to the position of the cuff portion 24 when the locking lug 49 is located in the locking channel 82 of the outer hub 80 (fig. 8B and 9B), and the second rest position is related to the position of the cuff portion 24 when the locking lug 49 is located in the unlocking channel 84 of the outer profile 80 (fig. 8A and 9A). In embodiments having multiple windows 110, multiple lock indicators 112 and unlock indicators 114 are included on the label 22 such that the same status indicator (e.g., locked or unlocked) is displayed through the window 110 in each rest position of the indicator assembly 20. The lock indicator 112 may be a graphical indicator and/or a color indicator. Similarly, the unlock indicator 114 may be a graphical indicator and/or a color indicator. For example, the unlock indicator 114 may be a green portion on each identification 22, and the lock indicator 112 may be a red portion on each identification 22.

A description of the functioning of the door lock 12 will now be provided to facilitate an understanding of how the door lock 12 works relative to the previously disclosed components. When the door lock 12 is installed on the door 10, the door lock 12 may be transitioned between a locked condition and an unlocked condition, wherein the lock indicator assembly 20 displays a locked state of the door lock 12. By transitioning the external lugs 48 of the external lock assembly 40 into the locking channels 82 of the external hub 80 (e.g., via actuation of the lock input), the door lock 12 can be transitioned between the locked and unlocked conditions. As the external lugs 48 transition into the locking channels 82, the external lugs 48 cannot rotate along the longitudinal axis 75. As the external lugs 48 transition longitudinally along or parallel to the longitudinal axis 75, the internal lugs 38 likewise transition along or parallel to the longitudinal axis 75.

The internal lugs 38 include a lock indicator engagement 39 that is magnetically coupled to the magnet holder 26. Because the inner lug 38 travels between the first and second positions as the outer lug 48 transitions between the locked and unlocked positions, and because the inner lug 38 is magnetically coupled to the magnet holder 26, the magnet holder 26 likewise transitions between the first and second positions (e.g., within the magnet holder passage 66 of the inner hub 60). The magnet holder 26 includes

permanent magnets

28b, 28c that generate a magnet holder magnetic field. The magnet holder magnetic field interacts with the first and second magnetic fields generated by the first, second, third, and fourth

permanent magnets

106a, 106b, 108a, 108b of the collar portion 24. When the magnet holder 26 is in the first position, the magnet holder magnetic field interacts with the effective first magnetic field of the collar portion 24. This interaction creates an attractive force between the

permanent magnets

28b, 28c of the magnet holder 26 and the second permanent magnet 106b located on the first extension 102 of the collar portion 24 at the first longitudinal position of the collar portion 24, and a repulsive force between the

permanent magnets

28b, 28c of the magnet holder 26 and the first permanent magnet 106a located on the second extension 104 of the collar portion 24 at the first longitudinal position. Because the cuff portion 24 is positioned in rotational engagement relative to the inner hub 60, the first and

second extensions

102, 104 of the cuff portion 24 rotate within the cuff passage 70 of the inner hub 60 to a first predetermined position (i.e., a first rest position). When the magnet holder 26 is in the second position, the magnet holder magnetic field interacts with the effective second magnetic field of the collar portion 24. This interaction generates a repulsive force between the

permanent magnets

28b, 28c of the magnet holder 26 and the third permanent magnet 108a located on the first extension 102 of the collar portion 24 at the second longitudinal position of the collar portion 24, and an attractive force between the

permanent magnets

28b, 28c of the magnet holder 26 and the fourth permanent magnet 108b located on the second extension 104 of the collar portion 24 at the second longitudinal position. This causes the cuff portion 24 to rotate within the cuff portion passage 70 of the inner hub 60 to a second predetermined position (i.e., a second rest position). The inner ledge 38 separates from the magnet holder 26 when the egress handle 14 is actuated, such that the inner ledge 38 rotates within the interior space 67 of the inner hub 60 because the magnet holder 26 is constrained to a particular circumferential position within the magnet holder channel 66 of the inner hub 60. As the internal lug 38 returns to the neutral position, the internal lug 38 and the magnet holder 26 re-engage through the magnetic coupling.

The flag 22 is coupled to the cuff portion 24 such that when the cuff portion 24 is rotated, the flag 22 is also rotated. Indicia 22 includes indicators (e.g., lock indicator 112 and unlock indicator 114) visible through window 110 of cover 29a to indicate the particular lock state (e.g., locked and unlocked indicia, green and red portions) of external lug 48. The logo 22 and the box cover 29a are configured to include two locations on opposite sides (e.g., top and bottom after installation) indicating the status of the lock. This simplifies installation so that the logo 22 and the box cover 29a can be more easily aligned and the locked state can be seen from a plurality of angles.

Magnetically actuated lock indicators provide various advantages including, but not limited to, reduced wear on the internal components of the locking system, thereby reducing wear on components critical to maintaining the locking function of the door lock 12, lock status updates directly associated with providing components for preventing mechanical interference from actuating an egress handle (e.g., external lugs 48) and status indicators that provide a quick transition between displaying a locked state and an unlocked state due to opposing magnetic fields.

Additional descriptions of lock status indicators such as those described above may be found in united states provisional patent application No. 63/033,806 filed on 2.6.2020 and in a united states utility application entitled "lock status indicator" filed on even date herewith under the designated attorney docket No. BAS-2020502-02, the entire contents of which are incorporated herein by reference in their entirety.

While this invention has been described as having an exemplary design, the present invention may be further modified within the spirit and scope of this disclosure. This application is therefore intended to cover any variations, uses, or adaptations of the invention using its general principles. Further, this application is intended to cover such departures from the present disclosure as come within known or customary practice in the art to which this invention pertains.

Claims

1. A cylinder lock having a first side and a second side, the cylinder lock comprising:

a latch bolt movable between an engaged position operable to restrict ingress and egress and a disengaged position operable to permit ingress and egress;

a first actuator operable to receive a first operator input action to actuate the first actuator for moving the latch bolt from the engaged position to the disengaged position, the first actuator being located on a first side of the cylinder lock;

a second actuator operable to receive a second operator input action to actuate the second actuator for moving the latch bolt from the engaged position to the disengaged position, the second actuator being located on a second side of the cylinder lock;

a first locking lug actuatable between a locked position and an unlocked position, the locked position of the first locking lug corresponding to the cylinder lock being in a locked condition, the first operator input action being prevented from actuating the first actuator to move the latch bolt from the engaged position to the disengaged position;

a magnet holder having at least one permanent magnet, the magnet holder selectively operably coupled to the first locking lug such that, when the magnet holder and the first locking lug are operably coupled, the magnet holder moves with the first locking lug between the locked position and the unlocked position; and

an indicator having a lock signal indicative of a locked position of said first locking lug and an unlock signal indicative of an unlocked position of said first locking lug, said indicator selectively displaying only one of said lock signal and said unlock signal, said indicator magnetically driven by said at least one permanent magnet of said magnet holder between a lock signal position displaying said lock signal and an unlock signal position displaying said unlock signal.

2. The cylinder lock of claim 1, wherein when the locking lug is in the unlocked position, the locking lug is moved by the first actuator input action, the movement of the locking lug disengaging the locking lug from the magnet holder.

3. The cylinder lock of claim 1, further comprising:

a first hub on a first side of the cylinder lock and a second hub on a second side of the cylinder lock, wherein in a locked position of the first locking lug, the first hub prevents movement of the first locking lug, thereby preventing the first operator input action from actuating the first actuator to move the latch bolt from the engaged position to the disengaged position; and

a second locking lug operatively coupled to the first locking lug and operable to transition between a first position associated with the engaged position of the first locking lug and a second position associated with the disengaged position.

4. The cylinder lock of claim 3, wherein the at least one permanent magnet of the magnet holder comprises a coupled permanent magnet operable to selectively couple with the second locking lug and thereby the first locking lug, and transition between the first and second positions with the second locking lug.

5. The cylinder lock of claim 4 further comprising a cuff portion positioned coaxially with the second hub, the cuff portion operable to transition between a locked state position and an unlocked state position.

6. The cylinder lock of claim 5, wherein the cuff portion includes a first extension and a second extension, the first extension and the second extension including a plurality of permanent magnets forming a first magnetic field and a second magnetic field, wherein the magnet holder interacts with the first magnetic field for driving the cuff portion to the locked condition position when the magnet holder is in the first position, and interacts with the second magnetic field for driving the cuff portion to the unlocked condition position when the magnet holder is in the second position.

7. The cylinder lock of claim 6 wherein the identification portion is operatively coupled to the cuff portion and is operable to move with the cuff portion between a locked state position corresponding to a locked signal position of the identification portion and an unlocked state position corresponding to an unlocked signal position of the identification portion.

8. A lock indicator assembly for a cylinder lock having a first side and a second side, the lock indicator assembly comprising:

a first locking lug located on a first side of the cylinder lock and actuatable between a locked position and an unlocked position, the locked position of the locking lug placing the cylinder lock in a locked condition;

a shaft extending from a first side of the cylinder lock to a second side of the cylinder lock and actuatable between a first shaft position associated with a locked position of the locking lug and a second shaft position associated with an unlocked position of the locking lug;

a second locking lug on a second side of the cylinder lock and operatively coupled to the first locking lug via the shaft and actuatable between a corresponding locked position associated with the locked position of the first locking lug and a corresponding unlocked position associated with the unlocked position of the first locking lug;

a cuff portion on a second side of the cylinder lock, the cuff portion being actuatable between a locked state position associated with the locked position of the first locking lug, the first shaft position and the corresponding locked position of the second locking lug, and an unlocked state position associated with the unlocked position of the first locking lug, the second shaft position and the corresponding unlocked position of the second locking lug; and

a flag operatively coupled to the ferrule portion such that the flag moves with the ferrule portion, the flag operable to display a locked state when the ferrule portion is in the locked state position and operable to display an unlocked state when the ferrule portion is in the unlocked state position.

9. A lock indicator assembly for a cylinder lock according to claim 8, further comprising:

a first hub on a first side of the cylinder lock, the first hub having a lock channel, the first lock lug occupying the lock channel when in the locked position, the lock channel preventing movement of the first lock lug required to actuate the cylinder lock; and

a second hub on a second side of the cylinder lock, the second locking lug having an interior space, the second locking lug moving within the interior space of the second hub between the corresponding locked position and the corresponding unlocked position.

10. The lock indicator assembly of claim 8, further comprising a magnet holder having at least one magnet holder permanent magnet located on a second side of the cylinder lock and operatively and selectively coupled with the second locking lug and operable to transition between a first magnet holder position associated with a locked position of the first locking lug and a second magnet holder position associated with an unlocked position of the first locking lug, the at least one magnet holder permanent magnet operable to magnetically drive the cuff portion between the locked state position and the unlocked state position.

11. The lock indicator assembly according to claim 10, wherein the cuff portion comprises a first extension and a second extension, the first extension and the second extension comprising a plurality of cuff portion permanent magnets forming a first magnetic field and a second magnetic field, the magnet holder magnetically engaging the first magnetic field of the cuff portion in the first magnet holder position to place the cuff portion in the locked condition position, the magnet holder magnetically engaging the second magnetic field of the cuff portion in the second magnet holder position to place the cuff portion in the unlocked condition position.

12. The lock indicator assembly of claim 11 wherein the first extension of the cuff portion is circumferentially spaced from the second extension of the cuff portion.

13. The lock indicator assembly according to claim 12, wherein the collar portion and the identification portion are operable to rotate between the locked condition position and the unlocked condition position.

14. The lock indicator assembly according to claim 11, wherein the plurality of collar portion permanent magnets includes a first collar portion permanent magnet located with the first extension at a first longitudinal position relative to the collar portion and a second collar portion permanent magnet located with the second extension at the first longitudinal position relative to the collar portion, the first collar portion permanent magnet and the second collar portion permanent magnet form the first magnetic field, and wherein the plurality of permanent magnets includes a third cuff permanent magnet located with the first extension at a second longitudinal position relative to the cuff portion and a fourth cuff permanent magnet located with the second extension at the second longitudinal position relative to the cuff portion, the third collar portion permanent magnet and the fourth collar portion permanent magnet form the second magnetic field.

15. The lock indicator assembly of claim 14, wherein the first and second hoop portion permanent magnets are oriented such that north poles substantially face each other, and wherein the third and fourth hoop portion permanent magnets are oriented such that south poles substantially face each other.

16. The lock indicator assembly of claim 15, wherein the at least one magnet holder permanent magnet comprises at least two magnet holder permanent magnets operable to selectively magnetically interact with the first and second magnetic fields formed by the plurality of collar portion permanent magnets, the at least two magnet holder permanent magnets each having opposing poles oriented substantially in the same direction.

17. An access device operable to selectively prevent and allow access through a barrier, the access device comprising:

an actuator operable to receive an operator input action to rotate the actuator to allow access through the barrier, the actuator extending from a first side of the barrier;

a lock actuatable between a locked position and an unlocked position, the locked position of the lock placing the lock in a locked condition preventing the operator input action from rotating the actuator while allowing access through the barrier, the lock comprising:

a first hub having a locking channel;

a first locking lug occupying a locking channel of the first hub in a locked position of the lock and thereby preventing the operator input action from rotating the actuator to allow access through the barrier, the first locking lug rotating with the actuator in an unlocked position of the lock by the operator input action; and

an indicator having a lock signal indicating a locked position of the lock and an unlock signal indicating an unlocked position of the lock, the indicator selectively displaying only one of the lock signal and the unlock signal, the indicator having a lock signal display position displaying the lock signal and an unlock signal display position displaying the unlock signal;

said first locking lug being selectively magnetically coupled to said indicator such that transitioning of said lock from said unlocked position to said locked position places said indicator in said locked signal display position and transitioning of said lock from said locked position to said unlocked position places said indicator in said unlocked signal display position,

in the unlocked position of the lock, the first locking lug is disengaged from the indicator, wherein the indicator maintains the unlocked signal display position throughout the operator input action rotating the actuator and the lug.

18. The access device of claim 17, further comprising:

a magnet holder selectively magnetically coupling the first locking lug to the indicator, the magnet holder operable to magnetically actuate the indicator between the lock signal display position and the unlock signal display position.

19. The access device of claim 18, wherein the indicator comprises an identification portion, the access device further comprising:

a cuff portion coupling the magnet holder and the identification portion.

20. The access device of claim 18, wherein the lock further comprises:

a second hub, the first hub passing through a first side of the barrier, the second hub passing through a second side of the barrier;

a shaft extending between the first hub and the second hub; and

a second locking lug, the shaft coupling the first locking lug and the second locking lug, the second hub having an interior space, the second locking lug moving within the interior space of the second hub upon movement of the first locking lug, the shaft and the second locking lug selectively magnetically coupling the first locking lug to the indicator.